diff --git a/.rubocop.yml b/.rubocop.yml
index 3277532b..3f995f96 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -37,10 +37,6 @@ Lint/DuplicateBranch:
 Style/NegatedIf:
   Enabled: false
 
-# Disabling for now until it's clearer why we want this
-Style/FrozenStringLiteralComment:
-  Enabled: false
-
 # It's nice to be able to read the condition first before reading the code within the condition
 Style/GuardClause:
   Enabled: false
diff --git a/Gemfile b/Gemfile
index 56582cfe..b932afa4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 gemspec
diff --git a/bin/codeownership b/bin/codeownership
index e711bda0..16a928f9 100755
--- a/bin/codeownership
+++ b/bin/codeownership
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 # typed: strict
 
 require 'code_ownership'
diff --git a/code_ownership.gemspec b/code_ownership.gemspec
index c5330b7c..23a7f671 100644
--- a/code_ownership.gemspec
+++ b/code_ownership.gemspec
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_relative 'lib/code_ownership/version'
 
 Gem::Specification.new do |spec|
diff --git a/rakelib/compile.rake b/rakelib/compile.rake
index e8a3e114..e5ea612e 100644
--- a/rakelib/compile.rake
+++ b/rakelib/compile.rake
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rb_sys/extensiontask'
 
 RbSys::ExtensionTask.new('code_ownership', GEMSPEC) do |ext|
diff --git a/rakelib/env.rake b/rakelib/env.rake
index ae24bff5..fe30728e 100644
--- a/rakelib/env.rake
+++ b/rakelib/env.rake
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 namespace :env do
   desc 'Sets up environment variables "dev" builds'
   task :dev do
diff --git a/rakelib/helpers.rake b/rakelib/helpers.rake
index f9d11587..ca4e3d8a 100644
--- a/rakelib/helpers.rake
+++ b/rakelib/helpers.rake
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 REPO_FILES = Rake::FileList.new
 
 def dirglob(pattern)
diff --git a/rakelib/pkg.rake b/rakelib/pkg.rake
index 1363ac90..6d77abbf 100644
--- a/rakelib/pkg.rake
+++ b/rakelib/pkg.rake
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 CLOBBER.include('pkg/**/*.gem')
 CLEAN.include('tmp/pkg')
 CLEAN.include('tmp/pkg')
diff --git a/rakelib/spec.rake b/rakelib/spec.rake
index 69d303d3..737e97b1 100644
--- a/rakelib/spec.rake
+++ b/rakelib/spec.rake
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 CLEAN.include('.rspec_status')
 
 begin
diff --git a/spec/lib/code_ownership/cli_spec.rb b/spec/lib/code_ownership/cli_spec.rb
index e0c5b782..3fc6afde 100644
--- a/spec/lib/code_ownership/cli_spec.rb
+++ b/spec/lib/code_ownership/cli_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 RSpec.describe CodeOwnership::Cli do
   subject { CodeOwnership::Cli.run!(argv) }
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index f686b339..56e2b390 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'bundler/setup'
 require 'debug'
 require 'packwerk'
diff --git a/spec/support/application_fixtures.rb b/spec/support/application_fixtures.rb
index d574e332..89fabdab 100644
--- a/spec/support/application_fixtures.rb
+++ b/spec/support/application_fixtures.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 RSpec.shared_context 'application fixtures' do
   let(:codeowners_path) { Pathname.pwd.join('.github/CODEOWNERS') }